Building roof, and the method of constructing same

ABSTRACT

A building roof formed of preformed and precast beams to be mounted on a roof framework, the beams, formed of fiberboard channels in which foamed polyurethane, or the like, is deposited, are mounted in parallel relation with longitudinal reinforcing members between the beams, said reinforcing members being perforated transversely, and said beams resting at one end on a soffit, said soffit being formed of panels wide enough to provide an overhanging eve outside of the building wall and an area inside the building wall for mounting air conditioning conduits, wires, pipes and the like, said beams being bonded in a single unit by means of a sealant; and the method of forming a roof wherein fiberboard channels are formed in which a foam material such as polyurethane is deposited to form channel beams, supported by a framework having one end in vertical alignment with the outside wall of the building, and longitudinal reinforcing means mounted between each beam, said reinforcing means being of less width than the side wall of the beam, so that a stapling area is left to anchor the beams in abutting relation and one end of the beams being fitted against an upstanding side wall of a soffit and the other end abutting a ridge plate, and the entire assembly sprayed with polyurethane, or the like, to seal the roof into a single unit.

Beard et a1.

1 1 June 11, 1974 BUILDING ROOF, AND THE METHOD OF CONSTRUCTING SAME [76] Inventors: Franklin Beard; Nelson E. Schwartz,

both of 11710 Old Main Loop,

Houston, Tex. 77025 22 Filed: June 7,1971

21 Appl. No.: 150,444

[52] US. Cl 52/92, 52/309, 52/320,

52/515 [51 Int. Cl.. E04b 7/02 [58] Fieldof Search 52/90, 309, 22, 92, 227,

52/231, 474, 743, 744, 265, 320, 321, 323, 52 579, 95, 93. 515. 264/256. 308, Di g. 37

[56] References Cited UNITED STATES PATENTS 1,275,668 8/1918 Filippone 52/321 X 2,684,134 7/1954 Ruppel 52/579 X 3,107,755 10/1963 Thibert 52/579 3,169,347 2/1965 Shy 52/92 3,302,362 2/1967 Lang.... 52/743 3,315,424 4/1967 Smith 52/743 X 3,564,785 2/1971 Kephant... 52/86 X 3,579,937 5/1971 Lukens 52/309 3,591,437 7/1971 Schafer.... 52/309 X 3,597,890 8/1971 Hala 52/86 Primary Examinep-Henry C. Sutherland Assistant Examiner-Carl D. Friedman Attorney, Agent, or Firm-Ranseler O. Wyatt [57] ABSTRACT A building roof fonned of preformed and precast beams to be mounted on a roof framework, the

beams, formed of fiberboard channels in which foamed polyurethane, or the like, is deposited, are mounted in parallel relation with longitudinal reinforcing members between the beams, said reinforcing members being perforated transversely, and said beams resting at one end on a soffit, said soffit being formed of panels wide enough to provide an overhanging eve outside of the building wall and an area inside the building wall for mounting air conditioning conduits, wires, pipes and the like, said beams being bonded in a single unit by means of a sealant; and the method of forming a roof wherein fiberboard channels are formed in which a foam material such as polyurethane is deposited to form channel beams, supported by a framework having one end in vertical alignment with the outside wall of the building, and longitudinal reinforcing means mounted between each beam, said reinforcing means being of less width than the side wall of the beam, so that a stapling area is left to anchor the beams in abutting relation and one end of the beams being fitted against an upstanding side wall of a soffit and the other end abutting a ridge plate, and the entire assembly sprayed with polyurethane, or the like, to seal the roof into a single unit.

3 Claims, 1 Drawing Figure BUILDING ROOF, AND THE METHOD OF CONSTRUCTING SAME,

SUMMARY OF THE INVENTION A roof for buildings having parallel beams formed of fiberboard channels having a foamed plastic filler such as polyurethane, mounted on a roof frame formed of the usual members having one end in vertical alignment with the outside walls of the building; a soffit formed of panels mounted on the outside building wall and supporting one end of said beams, and extending beyond the building wall, forming eves, and having an area extending inside of the building wall for air conditioning conduits and the like, longitudinal reinforcing means between said beams, and a coating of a sealant of polyurethane, or the like, placed over the assembled roof. The method of forming a roof comprising forming channel members of fiberboard, depositing a foam material such as polyurethane foam in said members, mounting reinforcing members between said beams and stapling said beams in parallel relation on the roof framework, forming a soffit on the outside wall of the building and seating one end of said beams on said soffit, then spraying, or otherwise applying a coat of sealant to said beams.

BRIEF DESCRIPTION OF THE DRAWINGS The FIGURE is' a side elevational view, partially in section.

DESCRIPTION OF THE PREFERRED EMBODIMENT In the drawings, the numerals 1, designate the outside walls of a building, such as constructed as per the teachings of our copending application for patent Ser. No. 59,074, on a Building Construction, and upon which is mounted the soffit 2, having the base thereof formed of suitable material such as plywood, and having upstanding walls such as the usual 2X45 3, upon which a suitable gravel guard 4 is mounted. Suitable openings, such as 5, may be provided in the soffit be? tween the outer edge and thewall l for ventillation. The area between the walls 3, may also be employed as support for the air conditioning ducts, water lines, gas lines, electric wires, etc. t

The roof framework will be constructed with the usual 2X45 as 6 mounted on the soffit 2 at one end, immediately above the top of the building wall as 1, and bearing against the ridge plate 7 at the other end. Beams 8 areformed byforming channel members out of suitable material, such as polyester impregnated fiberboard, and depositing therein polyurethane foam in liquid form, and when the polyurethane has foamed and set, mounting a beam on one of the 2X4s 6 and stapling beams similarly formed on either side thereof, with a strip of perforated metallic reinforcing material as 9 between each beam, the reinforcing strips being of less width than the side wall of the beam, so that an area free of the reinforcing material is present for stapling purposes. The fiberboard being of soft material, the metallic reinforcing members 9 are embeded in the side walls of the beams as the beams are forced together.

The lower ends of the beams 8 are formed to fit snugly against the outer wall 3 of the soffit, and beveled to lie on the top of the soffit base member. After the beams are in place, the entire roof is sprayed with polyurethane foam, and when this foam sets, the entire roof is sealed into one integral unit.

The method herein taught is the fonnation of a roof for a building wherein the roof is formed by precasting beams in channel shaped fiberboard members, employing polyurethane foam, or the like, and anchoring the beams in parallel relation and mounting same on the framework of the roof, and spraying, or otherwise applying, a coat of sealant to the completed roof, to join the beams into one integral unit.

What we claim is:

1. A building roof having a soffit, a framework mounted on said soffit, channel shaped beams mounted on said framework with the inside walls of said beams forming the inside surface of said roof, said beams being formed of channel shaped fiberboard having a layer of polyurethane foam, and metallic reinforcing members mounted between each beam.

2. The building defined in claim. 1, a spray coat of plastic sealant over said beams and reinforcing members and said reinforcing members being perforated to permit their becoming embeded in said structure after the beams are mounted in abutting relation.

3. A building roof having a soffit, a framework mounted on said soffit, channel shaped beams mounted on said framework with the inside walls of said beams forming the inside surface of said roof, said beams being formed of channel shaped fiberboard having a layer of polyurethane foam, and said beams are anchored to said framework and to each other in abutting relation, and the entire area sprayed with polyurethane foam forming an integral unit. 

1. A building roof having a soffit, a framework mounted on said soffit, channel shaped beams mounted on said framework with the inside walls of said beams forming the inside surface of said roof, said beams being formed of channel shaped fiberboard having a layer of polyurethane foam, and metallic reinforcing members mounted between each beam.
 2. The building defined in claim 1, a spray coat of plastic sealant over said beams and reinforcing members and said reinforcing members being perforated to permit their becoming embeded in said structure after the beams are mounted in abutting relation.
 3. A building roof having a soffit, a framework mounted on said soffit, channel shaped beams mounted on said framework with the inside walls of said beams forming the inside surface of said roof, said beams being formed of channel shaped fiberboard having a layer of polyurethane foam, and said beams are anchored to said framework and to each other in abutting relation, and the entire area sprayed with polyurethane foam forming an integral unit. 